I have a working one here at my shop 100$ plus shipping, I cannot test the trackball inputs as i do not have one, sound and video are fine I can send pics if your interested
Some years ago i created a full set of skyshark schematics. It took weeks of reverse engineering. I even routed an identical board for reference ( traces are not in the same places) I have been thinking about releasing it to the population. I am currently troubleshooting one now and it hangs...